Giant topological and planar Hall effect in 
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Mayoh, Daniel; Bouaziz, Juba; Hall, A. E.; Staunton, J. B.; Lees, Martin R.

doi:10.1103/physrevresearch.4.013134

Cited by 19 publications

(16 citation statements)

References 59 publications

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“…CSLs are separated by ferromagnetic domains and have periodicities that increase non-monotonically with applied field, exhibiting strong coupling with conduction electrons and giving rise to nontrivial magneto-transport properties. [30,[33][34][35][36][37][38][39][40][41][42] The magnetic skyrmion states most commonly exist in cubic crystals with magnetic isotropy, while the magnetic soliton states are formed in hexagonal crystals with uniaxial magnetic anisotropy. Transformations from 1D solitons to 2D skyrmions are therefore typically restricted by the intrinsic crystal structure and the resulting different types of DM vectors.…”

Section: Resultsmentioning

confidence: 99%

Transformation from Magnetic Soliton to Skyrmion in a Monoaxial Chiral Magnet

Song

Wang

et al. 2023

Advanced Materials

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Topological spin textures are of great interest for both fundamental physics and applications in spintronics. The Dzyaloshinskii–Moriya interaction underpins the formation of single‐twisted magnetic solitons or multi‐twisted magnetic skyrmions in magnetic materials with different crystallographic symmetries. However, topological transitions between these two kinds of topological objects have not been verified experimentally. Here, the direct observation of transformations from a chiral soliton lattice (CSL) to magnetic skyrmions in a nanostripe of the monoaxial chiral magnet CrNb3S6 using Lorentz transmission electron microscopy is reported. In the presence of an external magnetic field, helical spin structures first transform into CSLs and then evolve into isolated elongated magnetic skyrmions. The detailed spin textures of the elongated magnetic skyrmions are resolved using off‐axis electron holography and are shown to comprise two merons, which enclose their ends and have unit total topological charge. Magnetic dipolar interactions are shown to play a key role in the magnetic soliton–skyrmion transformation, which depends sensitively on nanostripe width. The findings here, which are consistent with micromagnetic simulations, enrich the family of topological magnetic states and their transitions and promise to further stimulate the exploration of their emergent electromagnetic properties.

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Section: Resultsmentioning

confidence: 99%

Transformation from Magnetic Soliton to Skyrmion in a Monoaxial Chiral Magnet

Song

Wang

et al. 2023

Advanced Materials

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“…Contrary to conventional metallic ferromagnets like Ni, − in which the resistivity uniformly decreases upon cooling, the resistivity in the ab plane exhibits an abrupt increase around T C . These results, along with other unusual MR behavior around T C , ,− are indicative of complex transport properties of Cr 1/3 NbS 2 , which are not yet fully understood. Temperature-dependent variations in carrier concentrations and types from thermal transport and Hall measurements suggest the presence of multiple bands near the Fermi level, with relative contributions varying with temperature. , …”

Section: Chromium-intercalated Niobium and Tantalum Sulfidesmentioning

confidence: 93%

Structure and Magnetism of Iron- and Chromium-Intercalated Niobium and Tantalum Disulfides

et al. 2022

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Transition metal dichalcogenides (TMDs) intercalated with spin-bearing transition metal centers are a diverse class of magnetic materials where the spin density and ordering behavior can be varied by the choice of host lattice, intercalant identity, level of intercalation, and intercalant disorder. Each of these degrees of freedom alters the interplay between several key magnetic interactions to produce disparate collective electronic and magnetic phases. The array of magnetic and electronic behavior typified by these systems renders them distinctive platforms for realizing tunable magnetism in solid-state materials and promising candidates for spin-based electronic devices. This Perspective provides an overview of the rich magnetism displayed by transition metal-intercalated TMDs by considering Fe- and Cr-intercalated NbS2 and TaS2. These four exemplars of this large family of materials exhibit a wide range of magnetic properties, including sharp switching of magnetic states, current-driven magnetic switching, and chiral spin textures. An understanding of the fundamental origins of the resultant magnetic/electronic phases in these materials is discussed in the context of composition, bonding, electronic structure, and magnetic anisotropy in each case study.

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“…as the magnetic ground state, a highly helical CSL phase (CSL-1), a highly ferromagnetic CSL phase (CSL-2), and at high enough magnetic field a region of field polarized forced ferromagnetism aligned with the external magnetic field [13]. Additionally, if instead the external magnetic field is applied parallel to the c axis of the material, a chiral conical magnetic phase is produced, while at most oblique fields directed at the material there is a tilted CSL phase produced [22,23]. Some form of CSL phase is, therefore, stabilized for a large number of external field magnitudes and directions, which is an exciting prospect for device applications.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of the structural and magnetic properties of Mn1/3NbS2 and Cr1/
Hall
¹
,
Loudon
²
,
Midgley
³

et al. 2022
Phys. Rev. Materials
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We compare the magnetism of single crystals of the intercalated transition metal dichalcogenides Cr 1/3 NbS 2 and Mn 1/3 NbS 2 using techniques such as dc and ac susceptibility and Lorentz transmission electron microscopy (LTEM). We present a detailed structural investigation of these materials using electron and single-crystal x-ray diffraction measurements to show how substitutional disorder and stacking faults can manifest in Cr 1/3 NbS 2 and Mn 1/3 NbS 2 , and give rise to additional superlattice reflections in diffraction patterns acquired from Mn 1/3 NbS 2 . Magnetic susceptibility and LTEM measurements show Cr 1/3 NbS 2 displays chiral helimagnetism below its magnetic ordering temperature (T C ) of 111 K, while there is no evidence that Mn 1/3 NbS 2 exhibits helimagnetic ordering below its transition temperature T C = 45 K.

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Giant topological and planar Hall effect in Cr1/3NbS2

Cited by 19 publications

References 59 publications

Transformation from Magnetic Soliton to Skyrmion in a Monoaxial Chiral Magnet

Transformation from Magnetic Soliton to Skyrmion in a Monoaxial Chiral Magnet

Structure and Magnetism of Iron- and Chromium-Intercalated Niobium and Tantalum Disulfides

Comparative study of the structural and magnetic properties of Mn1/3NbS2 and Cr1/
Hall
¹
,
Loudon
²
,
Midgley
³

et al. 2022
Phys. Rev. Materials
Self Cite
14
1
8
0
View full text Add to dashboard Cite

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Giant topological and planar Hall effect in Cr1/3NbS2

Cited by 19 publications

References 59 publications

Transformation from Magnetic Soliton to Skyrmion in a Monoaxial Chiral Magnet

Transformation from Magnetic Soliton to Skyrmion in a Monoaxial Chiral Magnet

Structure and Magnetism of Iron- and Chromium-Intercalated Niobium and Tantalum Disulfides

Comparative study of the structural and magnetic properties of Mn1/3NbS2 and Cr1/Hall1, Loudon2, Midgley3 et al. 2022Phys. Rev. MaterialsSelf Cite14180View full textAdd to dashboardCite

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Comparative study of the structural and magnetic properties of Mn1/3NbS2 and Cr1/
Hall
¹
,
Loudon
²
,
Midgley
³

et al. 2022
Phys. Rev. Materials
Self Cite
14
1
8
0
View full text Add to dashboard Cite